64814220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{907}}^1$

素因数の和:1319

約数の個数: 72

約数和(自身を含む): 197315664

約数和(自身を除く): 132501444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 397, 794, 907, 1191, 1588, 1814, 1985, 2382, 2721, 3573, 3628, 3970, 4535, 4764, 5442, 5955, 7146, 7940, 8163, 9070, 10884, 11910, 13605, 14292, 16326, 17865, 18140, 23820, 27210, 32652, 35730, 40815, 54420, 71460, 81630, 163260, 360079, 720158, 1080237, 1440316, 1800395, 2160474, 3240711, 3600790, 4320948, 5401185, 6481422, 7201580, 10802370, 12962844, 16203555, 21604740, 32407110, 64814220]

約数ペア:

[(1, 64814220), (2, 32407110), (3, 21604740), (4, 16203555), (5, 12962844), (6, 10802370), (9, 7201580), (10, 6481422), (12, 5401185), (15, 4320948), (18, 3600790), (20, 3240711), (30, 2160474), (36, 1800395), (45, 1440316), (60, 1080237), (90, 720158), (180, 360079), (397, 163260), (794, 81630), (907, 71460), (1191, 54420), (1588, 40815), (1814, 35730), (1985, 32652), (2382, 27210), (2721, 23820), (3573, 18140), (3628, 17865), (3970, 16326), (4535, 14292), (4764, 13605), (5442, 11910), (5955, 10884), (7146, 9070), (7940, 8163)]